package SQL.abysnSQL;

public class Cop {
	public Cop(COP cop) {
		this.cop = cop;
	}
	
	public COP cop;
	
	public Cop minus() {
		switch (cop) {
		case LT:
			return new Cop(COP.GT);
		case GT:
			return new Cop(COP.LT);
		case LE:
			return new Cop(COP.GE);
		case GE:
			return new Cop(COP.LE);
		case EQ:
		case NEQ:
		}
		return this;
	}
	
	public static enum COP{
		EQ, NEQ, LT, LE, GT, GE
	}
}
